EASY
Earn 100

8 litre of H2 and 6 litre of Cl2 are allowed to react to maximum possible extent. Find out the final volume of reaction mixture. Suppose P and T remains constant throughout the course of reaction.

40% studentsanswered this correctly

Important Questions on Some Basic Concepts of Chemistry

EASY
The statement related to law of definite proportions is
MEDIUM
Which of the following have same number of significant figures?
(A) 0.00253
(B) 1.0003
(C) 15.0
(D)163
Choose the correct answer from the options given below
MEDIUM
56.0 L of nitrogen gas is mixed with excess of hydrogen gas and it is found that 20 L of ammonia gas is produced, The volume of unused nitrogen gas is found to be_____ L.
EASY
A bicycle tyre is filled with air having pressure of 270 kPa at 27°C. The approximate pressure of the air in the tyre when the temperature increases to 36°C is
EASY
Among the following pairs of compounds, the one that does not illustrate the law of multiple proportions, is
MEDIUM
By heating 200 g of metal carbonate, 112 g of metal oxide on a gaseous compound are produced. Vapour density of the gaseous compound is 22. How many moles of gaseous compound is produced in the reaction?
EASY
Which of the following is an example of Law of multiple proportion?
EASY
The percentage of copper and oxygen in samples of CuO obtained by different methods were found to be the same. This illustrates the law of.
MEDIUM
The mass of nitrogen per gram hydrogen in the compound hydrazine is exactly one and half times the mass of nitrogen in the compound ammonia. The fact illustrates the
MEDIUM
0.75 moles of a solid A4 and 2 moles of O2(g) are heated in a sealed vessel, completely using up the reactants and produces only one compound. It is found that when half the temperature is used to initial temperature, the products of the vessel exhibit a pressure equal to 12 of the original pressure. The formula of the product will be
EASY
One gram mole of a gas at NTP occupies 22.4 L. This fact was derived from
EASY
Which of the following is correct for

C(graphite)+O2 (gas)CO2 , heat =-348 kJ?
MEDIUM
How many g atoms of S are present  in 4.9 g  H2SO4 ?
EASY
One part of an element A combines with two parts of another element B. 6 parts of element C combines with 4 parts of B. If A and C combine together, the ratio of their weights, will be governed by
HARD
Carbon combines with oxygen to form two oxides. The carbon content in one of the oxides is 42.9% while in the other oxide it is 27.3%. Show that these data are in agreement with the law of multiple proportions. 
EASY
Number of molecules in 100 mL of each of O2, NH3 and CO2 at STP are in the order:
EASY
n gram of a substance X reacts with m gram of substance Y to form p gram of substance R and q gram of substanceS. This reaction can be represented as follows

X+Y=R+S

The relation which can be established in the amounts of the reactants and the products will be